DE19962454A1 - Rotor blade for wind turbines - Google Patents

Rotor blade for wind turbines

Info

Publication number
DE19962454A1
DE19962454A1 DE1999162454 DE19962454A DE19962454A1 DE 19962454 A1 DE19962454 A1 DE 19962454A1 DE 1999162454 DE1999162454 DE 1999162454 DE 19962454 A DE19962454 A DE 19962454A DE 19962454 A1 DE19962454 A1 DE 19962454A1
Authority
DE
Grant status
Application
Patent type
Prior art keywords
rotor blade
characterized
blade according
segments
elements
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
DE1999162454
Other languages
German (de)
Inventor
Soenke Siegfriedsen
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Aerodyn Engineering GmbH
Original Assignee
Aerodyn Engineering GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date

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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING WEIGHT AND MISCELLANEOUS MOTORS; PRODUCING MECHANICAL POWER; OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03DWIND MOTORS
    • F03D1/00Wind motors with rotation axis substantially parallel to the air flow entering the rotor 
    • F03D1/06Rotors
    • F03D1/065Rotors characterised by their construction, i.e. structural design details
    • F03D1/0675Rotors characterised by their construction, i.e. structural design details of the blades
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05BINDEXING SCHEME RELATING TO MACHINES OR ENGINES OTHER THAN NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, TO WIND MOTORS, TO NON-POSITIVE DISPLACEMENT PUMPS, AND TO GENERATING COMBUSTION PRODUCTS OF HIGH PRESSURE OR HIGH VELOCITY
    • F05B2240/00Components
    • F05B2240/20Rotors
    • F05B2240/30Characteristics of rotor blades, i.e. of any element transforming dynamic fluid energy to or from rotational energy and being attached to a rotor
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05BINDEXING SCHEME RELATING TO MACHINES OR ENGINES OTHER THAN NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, TO WIND MOTORS, TO NON-POSITIVE DISPLACEMENT PUMPS, AND TO GENERATING COMBUSTION PRODUCTS OF HIGH PRESSURE OR HIGH VELOCITY
    • F05B2260/00Function
    • F05B2260/96Preventing, counteracting or reducing vibration or noise
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00Energy generation through renewable energy sources
    • Y02E10/70Wind energy
    • Y02E10/72Wind turbines with rotation axis in wind direction
    • Y02E10/721Blades or rotors

Abstract

The invention relates to a rotor blade for a wind power installation which has a plurality of segmented elements (16, 18). Said segmented elements are attached to a load transmitting box spar (10) and are separated by elastic joints (28) which enable the segments to move in relation to one another, in order to minimise the tensile stress in the region of the rotor blade in which the segments are located.

Description

Die Erfindung betrifft ein Rotorblatt für Windenergiean lagen. The invention relates to a rotor blade for Windenergiean were.

Rotorblätter für Windenergieanlagen unterscheiden sich von bisher in ähnlicher Bauweise gefertigten Tragflügeln, beispielsweise von Flugzeugen, im wesentlichen dadurch, daß sie turbulenten Windströmungen ausgesetzt sind und durch die vertikale Anordnung der Drehebene mit wechseln den Eigengewichtsbelastungen durch die Gravitation und auch Fliehkräften unterliegen. Rotor blades for wind turbines differ from previously made in similar design airfoils, such as aircraft, essentially characterized in that they are subjected to turbulent wind flows and move through the vertical arrangement of the rotational plane of the self-weight loads by the gravitational and centrifugal forces subject.

Durch die kubisch mit dem Durchmesser ansteigende Blatt masse und die og Belastungen nehmen die Probleme bei der Strukturauslegung der Blätter insbesondere bei großen Rotorblättern überproportional zu. By increasing the diameter cubic leaf mass and the above stresses the problems in the structural design of the leaves increase disproportionately, especially for large rotor blades.

Bei bisheriger konventioneller Fertigung, beispielsweise aus zwei Hälften, die in Negativ-Formen vorgefertigt und anschließend in GFK-Bau-üblicher Weise miteinander ver klebt werden, werden insbesondere in der Schwenkebene der Blätter hohe Spannungsamplituden in der Profilnase und der dünn auslaufenden Profilhinterkante im Betrieb auf treten. In previous conventional production, for example, of two halves, which are prefabricated in negative molds and then glued together ver in GRP construction a conventional manner, high voltage amplitudes in the leading edge and the thin tapered trailing edge during operation are in particular in the pivot plane of the sheets to step.

Die durch die Spannungsamplituden hervorgerufenen Ermü dungsbelastungen führen insbesondere in der Profilhinter kante bei einigen der bisher bekannten Rotorblätter zu frühzeitiger Rißbildung, die sehr bedenklich ist, da sich die Risse durch die gesamte Struktur fortsetzen können und das Rotorblatt sogar völlig zerstören können. dung loads the induced voltage amplitudes Ermü lead especially in the trailing edge of some of the previously known rotor blades to premature cracking, which is very worrying, because the cracks can propagate through the entire structure and can completely destroy the rotor blade even.

Bisher begegnete man diesen Rissen dadurch, daß in der nachlaufenden Blatthälfte, der Profilfahne, und in der Profilnase zusätzliche Gurtstränge eingelegt wurden, die diese Lasten aufnehmen sollten. Until now responded to these cracks in that additional Gurtstränge were inserted in the trailing half of the sheet, the profile flag, and in the leading edge, which should absorb these loads. Zum einen ist dies ko stenträchtig, zum anderen ist dies auch deswegen nachtei lig, da dadurch hohe Kräfte in den Nasen- und Hinterkan tenbereich eingebracht werden, die im Blattanschluß wie der in den zentralen Holmkasten eingeleitet werden müs sen. One is ko stenträchtig, on the other hand, this is also why nachtei lig, since thereby high forces are introduced in the nasal passages and tenbereich Hinterkan that the blade connection as Mues be introduced into the central spar box sen.

Zusätzlich muß eine Kraftumlenkung stattfinden, die zwangsläufig Zusatzkräfte in Blattquerrichtung erzeugt, die wiederum nur durch zusätzliche strukturelle Elemente aufgefangen werden können. In addition, a force deflection must occur which generates additional forces inevitably in the sheet transverse direction, which in turn can be absorbed only by additional structural elements. Schließlich ist die Einbrin gung der Gurte in Nase und Hinterkante neben dem dadurch verursachten erheblichen Fertigungsaufwand auch eine Feh lerquelle für die Struktur, da der Verlauf dieser zusätz lichen Gurte ganz besonders genau eingehalten werden muß. Finally, the Einbrin's supply of the belts in the nose and trailing edge next to therefore causing substantial production expense also Feh lerquelle for the structure, since the course of this zusätz handy straps must be particularly strictly observed.

Die Erfindung hat sich daher zur Aufgabe gestellt, ein Rotorblatt zu schaffen, dessen Struktur bereits im Kon zept an die wechselnden Eigengewichte, die bei Windkraft anlagen auftreten, besser angepaßt ist, als dies bei her kömmlichen, den Flugzeugtragflächen ähnelnden Rotorblät tern der Fall ist. The invention has therefore set itself the task of creating a rotor blade whose structure is better adapted to Kon concept to the changing self weights plants occur in wind power than conventional at her, resembling the aircraft wings Rotorblät inspire the case.

Erfindungsgemäß wird dies durch eine Struktur mit den Merkmalen des Anspruches 1 erreicht. this is achieved by a structure having the features of claim 1. According to the invention. Die Unteransprüche geben vorteilhafte Ausführungsformen der Erfindung wie der. The sub-claims specify advantageous embodiments of the invention like that.

Insbesondere ist vorteilhaft, daß die Profilnasen und/ oder Fahnenstruktur des Rotorblattes aus einzelnen radial getrennten Segmentelementen aufgebaut ist. It is particularly advantageous that the profile tabs and / or lugs structure of the rotor blade is composed of individual elements radially separated segment. Diese Segmente werden separat mit einem tragenden Holmkasten verbunden, wobei sich in diesem Bereich eine schubsteife Verbindung ergibt. These segments are separately connected with a supporting spar box, wherein a shear-resistant connection results in this area.

Die Verbindung zwischen den Fahnenelementen selbst wird mit einem dauerelastischen Klebstoff hergestellt, der aufgrund seiner Nachgiebigkeit sehr geringe Kräfte in axialer Blattrichtung überträgt, wodurch eine lastabhän gige Deformation des tragenden Holmkastens nahezu lastlos von den Fahnenelementen nachvollzogen werden kann. The connection between the elements themselves flags is manufactured with a permanently elastic adhesive, which transmits because of its resilience very small forces in the axial direction of sheet, whereby a dent lastabhän deformation of the supporting spar box can be almost no-load followed by the flags elements. Die Länge der Fahnenelemente wird dabei so ausgelegt, daß die Verklebung zwischen den Fahnenelementen, der Last des elastischen Klebers angepaßt, diesen nicht überlastet. The length of the vane elements is in this case designed so that the bonding between the flags elements, the load of the elastic adhesive adapted not these overloaded.

Durch diese Ausführung ist die Hinterkante den bisher auftretenden hohen Dehnungsbelastungen entzogen, so daß nunmehr keine Ausbildung gefährlicher Risse mehr zu be fürchten ist. By this design, the rear edge is removed from the previously encountered high strain loads, so that now no training dangerous cracks longer fear to be. Durch die geringen Dehnungen im Bauteil kann zudem bei der Auslegung des Bauteils bereits an Ma terial eingespart werden. Due to the small strains in the component can also be already saved TERIAL to Ma in the design of the component.

Das Rotorblatt wird durch diese Aufteilung erheblich ein facher zu fertigen sein, was insbesondere bei sehr großen Rotorblättern, deren Bauformen die gesamte Länge des Rot orblattes haben müssen, bisher mit erheblichen Nachteilen in der Fertigung verbunden war. The rotor blade will be finished by this division considerably one-time thing, was previously associated particularly with very large rotor blades whose designs have orblattes have the entire length of the Red considerable disadvantages in production.

Weiter kann durch diese Ausbildung im Fall einer Struk turbeschädigung das Segment des betroffenen Bereiches einfach ausgetauscht werden, und die Segmente benötigen in sich keine Gurtstrukturen. Next, the segment of the affected area, by this training in the event of structural turbeschädigung easily be replaced, and the segments need in no belt structures.

Weitere Vorteile und Merkmale der Erfindung ergeben sich aus nachfolgender Beschreibung eines bevorzugten Ausfüh rungsbeispiels. Further advantages and features of the invention will become approximately example from the following description of a preferred exporting. Dabei zeigt Here shows

Fig. 1 eine Explosionsdarstellung eines Rotorblattes mit einer Reihe von sieben Nasenelementen, die vor einem durchgehenden Holmkasten an geordnet sind und an die sich in Drehrichtung nachlaufende Fahnenelemente anschließen, die zur hinteren Kante her schmal auslaufen, Fig. 1 is an exploded view of a rotor blade with a series of seven nose elements which are arranged in front of a continuous spar box and which is followed in the rotation direction trailing vane elements that leak to the rear narrow edge forth

Fig. 2 das Rotorblatt der Fig. 1 im zusammengebauten Zustand, Fig. 2, the rotor blade of FIG. 1 in the assembled state,

Fig. 3 eine prinzipielle Schnittdarstellung durch ein derartiges Rotorblatt, und Fig. 3 is a schematic sectional view through such a rotor blade, and

Fig. 4a, 4b, 4c drei alternative Arten der Klebver bindung zwischen den Fahnenelementen unter Belassung eines mit flexiblen, materialge füllten Fugenbereichs. Fig. 4a, 4b, 4c, three alternative types of Klebver bond between the flags elements, leaving a flexible, materialge filled gap section.

Das in der Fig. 1 und 2 dargestellte Rotorblatt besteht aus einem zentralen, vom Blattanschluß bis im wesentli chen zur Blattspitze 14 reichenden Holmkasten 10 , in dem Gurte 12 zur Aufnahme der Längsspannungen angeordnet sind. The rotor blade shown in Fig. 1 and 2 consists of a central, from the blade connection to the wesentli surfaces of the blade tip 14 reaching spar box 10, are arranged in the belts 12 for receiving the longitudinal stresses. Die Stege 22 (siehe auch Fig. 3) des Holmkasten 10 übertragen die Schubspannungen. The webs 22 (see also FIG. 3) of the spar box 10 transfer the shear stresses. An dem Holmkasten 10 sind zur Herstellung der erforderlichen aerodynamischen Außenkontur Nasen- und Fahnenelemente 18 , 16 , sowie ein an der äußeren Seite des Blattes als Blattspitze 14 vor handenes separates Teil, das mit dem Ende des Holmkastens 10 verbunden ist, vorgesehen. Are for the preparation of the required aerodynamic outer contour of the nose and vane elements 18, 16 on the spar box 10, and a, provided on the outer side of the blade as the blade tip 14 prior handenes separate part which is connected to the end of the spar box 10th

Dabei wird die Tragfunktion von einem im wesentlichen zentral im Rotorblatt verlaufenden Holmkasten 10 wahrge nommen, der bis zu einem abschließendem Spitzensegment 14 längs im Blatt ausgebildet ist und an den - in Rotations richtung - an der Vorderseite Nasenelemente 18 und an der Rückseite Fahnenelemente 16 angesetzt sind. In this case, the supporting function wahrge by a substantially centrally extending in the rotor blade spar box 10 taken formed up to a concluding top segment 14 along the leaf and to the - are attached to the front of tab members 18 and at the rear vane elements 16 - in rotational direction ,

In der Fig. 3 ist anhand eines Schnittes durch ein Rotor blatt eine schematische Darstellung enthalten, in der der Holmkasten mit seinen Gurten 12 und den beiden Stegen 22 sowie dem Verbindungslaminat 24 dargestellt ist, der An satzkanten 26 für die im wesentlichen im Querschnitt U-förmig ausgebildeten Nasenelemente und die im wesentli chen V-förmig ausgebildeten Fahnenelemente bietet. In Fig. 3 by way of cut is leaf by a rotor containing a schematic representation, in which the spar box with its belts 12 and the two webs 22, and the connecting laminate 24 is shown, which at block edges 26 for the substantially cross-sectionally U- shaped nose elements and in wesentli chen V-shaped vane elements offers.

Der Übergangsbereich zwischen zwei Segmenten 16 ; The transition region between two segments 16; 18 kann durch Verklebung teilflexibel ausgebildet sein, wobei je doch durch die Fugen 28 quer zur Erstreckung des Holmes bereits für jedes einzelne Segment eine Bewegung gegen über dem benachbarten möglich ist, so daß es selber ver gleichsweise steif an dem Holmkasten angesetzt werden kann. 18 may be formed in part flexibly by gluing, wherein each but a movement relative to the adjacent is through the gaps 28 transverse to the extension of the bar already for each individual segment is possible, so that it can be designed to be similarly rigidly attached to the spar box. Die Verbindung zwischen den Fahnen- und Nasenele menten 16 ; The connection between the flag and Nasenele elements 16; 18 mit dem Holmkasten 10 kann durch Verkle bung, Verschraubung, Vernietung oder einer Kombination hiervon ausgeführt werden. 18 with the spar box 10 can exercise by decreas, screwing, riveting or a combination thereof are performed.

In der Fig. 4 ist in Blattiefenrichtung die Verklebung zwischen den benachbarten Nasenelementen 18 oder zwischen den benachbarten Fahnenelementen 16 dargestellt, wobei die Verklebung über eine breite Fuge 28 erfolgt, die mit einem hochelastischen Klebstoff ausgefüllt ist, der der Zwangsverformung des Rotorblatts übertragen durch die Segmentelemente wenig Widerstand entgegensetzt, so daß sich innerhalb dieser und auch innerhalb der Fuge keine Rißbildung einstellen wird. In FIG. 4 chordwise the bond between the adjacent nose elements 18 or between the adjacent lugs elements 16 is shown, wherein the adhesive bonding over a wide joint 28 is carried out, which is filled with a highly elastic adhesive which transmitted the forced deformation of the rotor blade by the segment elements little resistance opposes so that within this and also within the joint is not set cracking.

Die Fuge 28 wird mit hochelastischem Kunststoff gefüllt sein, wobei eine großflächige Verklebung des elastischen. The gap 28 will be filled with highly elastic plastic, wherein a large-area bonding of the elastic. Materials an den Segmenten durch Ausbildung überlappender Strukturen ermöglicht wird. allowing the material to the segments by forming overlapping structures. Die einzelnen Segmente 16 ; The individual segments 16; 18 können insbesondere in diesem Fall von einer Fuge 28 mit einer Breite, die die in Richtung senkrecht zur Rotor blattebene definierte Höhe der seitlichen Segmentan schlußflächen um ein Mehrfaches übersteigt, zusammenge halten werden. Will hold 18 may, in particular in this case exceeds by a gap 28 having a width that mating surfaces perpendicular to the rotor blade plane in the direction defined height of the side Segmentan several times, together quantitative.

Die Fuge 28 kann dabei im Randbereich an der Segmentkante an Ober- und/oder Unterseite jeweils von einem festen, am Segment angesetzten Ansatzfläche 30 (siehe Fig. 4b) über deckt werden, wobei sich diese Abschnitte aneinander an grenzender Segmente überlappen können. The joint 28 can in each case from a solid, the next to the segment approach surface 30 in the edge region at the segment edge at the top and / or bottom (see Fig. 4b) covers over, whereby these portions may each overlap at bordering segments.

Es ist auch denkbar, daß die Fuge 28 durch von den beiden benachbarten Segmenten 16 ; It is also conceivable that the groove 28 by adjacent ones of the two segments 16; 18 in den Zwischenraum hinein ragende, U-förmige, mit den Segmenten einstückige Steg strukturen 32 im Kantenbereich zu den Segmenten hin, an Blattober- und Blattunterseite wenigstens teilweise über deckt wird. 18 which projects into the intermediate space, U-shaped, one-piece with the segments web structures 32 towards the edge region to the segments, is partially covered at least leaf upper and lower leaf surface.

Schließlich wird eine Ausführung vorgeschlagen, in der sich eine U-förmige Stegstruktur eines Segments und eine in diese einliegende Stegkante 34 eines angrenzenden Seg mentes derart überdecken, daß die Klebefuge 28 im Schnitt quer zur Erstreckung der Fuge einen U-förmigen Verlauf aufweist. Finally, an embodiment is suggested in which a U-shaped ridge structure of a segment and in this inset web edge 34 of an adjacent Seg mentes cover such that the glued joint 28 transverse to the extension of the joint has a U-shaped profile in section.

Claims (7)

  1. 1. Rotorblatt für eine Windenergieanlage, gekennzeich net durch eine Mehrzahl von Segmentelementen ( 16 , 18 ), die an einem lastübertragenden Holmkasten ( 10 ) ange setzt, zwischen sich elastische Fugen ( 28 ) besitzen, die eine Relativbewegung der Segmente zueinander zulas sen, um die Spannungsbelastungen in dem Bereich des Rotorblattes, in dem die Segmente vorgesehen sind, zu minimieren. 1. rotor blade for a wind power plant, gekennzeich net by a plurality of segment members (16, 18) on a load-bearing spar box (10) attached, have between them elastic joint (28) to prevent relative movement of the segments to each other zulas sen, to minimize the voltage stresses in the area of ​​the rotor blade, in which the segments are provided.
  2. 2. Rotorblatt nach Anspruch 1, dadurch gekennzeichnet, daß die zwischen den einzelnen Elementen vorgesehenen Fugen ( 28 ) mit hochelastischem Kunststoff gefüllt sind. 2. The rotor blade according to claim 1, characterized in that the measures provided between the elements joints (28) are filled with highly elastic plastic.
  3. 3. Rotorblatt nach einem der vorangehenden Ansprüche, dadurch gekennzeichnet, daß ein im wesentlichen zentral im Rotorblatt verlaufender Holmkasten ( 10 ) bis zu einem abschließendem Spitzensegment ausgebildet ist und an der Vorderseite Nasenelemente ( 18 ) und an der Rückseite Fahnenelemente ( 16 ) an diesen angesetzt sind. 3. Rotor blade according to one of the preceding claims, characterized in that a substantially centrally extending in the rotor blade spar box (10) up to a concluding top segment formed at the front of tab members (18) and at the rear vane elements (16) attached to this are.
  4. 4. Rotorblatt nach einem der vorangehenden Ansprüche, dadurch gekennzeichnet, daß die Fugenbreite, die durch den Abstand der einzelnen Segmente ( 16 , 18 ) gebildet ist, die in Richtung senkrecht zur Rotorblattebene de finierte Höhe der seitlichen Segmentanschlußflächen um ein Mehrfaches übersteigt. 4. The rotor blade according to one of the preceding claims, characterized in that the joint width by the distance of the individual segments (16, 18) is formed in excess in the direction perpendicular finierte to the rotor blade plane de height of the lateral segment pads by a multiple.
  5. 5. Rotorblatt nach Anspruch 4, dadurch gekennzeichnet, daß die Fuge ( 28 ) durch von beiden Segmenten ( 16 ; 18 ) in die Fuge hineinragende U-förmige, mit den Segmenten einstückige Stegstrukturen ( 32 ) im Kantenbereich zu den Segmenten hin an Ober- und Unterseite überdeckt wird. 5. The rotor blade according to claim 4, characterized in that the joint (28) of both segments (16; 18) projecting into the joint U-shaped, with the segments one-piece web structures (32) in the edge region to the segments out to the upper and the bottom is covered.
  6. 6. Rotorblatt nach Anspruch 4, dadurch gekennzeichnet, daß die Fuge ( 28 ) im Randbereich an der Segmentkante an Ober- und/oder Unterseite des Rotorblatts jeweils von einem festen, am Segment angesetzten Ansatzfläche ( 30 ) überdeckt wird, wobei die Ansatzflächen ( 30 ) aneinander angrenzender Segmente ( 16 ; 18 ) sich überlappen. 6. The rotor blade according to claim 4, characterized in that the joint (28) in the edge region at the segment edge at the top and / or bottom of the rotor blade is covered by a respective fixed, the next to the segment approach surface (30), whereby the approach surfaces (30 ) of adjacent segments (16; 18) overlap.
  7. 7. Rotorblatt nach Anspruch 4, dadurch gekennzeichnet, daß sich eine U-förmige Stegstruktur eines Segments und eine in diese einliegende Stegkante ( 34 ) an einem dane benliegenden Segment sich derart überdecken, daß die Fuge ( 28 ) im Schnitt quer zur Erstreckung der Fuge ei nen U-förmigen Verlauf aufweist. 7. The rotor blade according to claim 4, characterized in that a U-shaped ridge structure of a segment and in this inset web edge (34) overlap at a dane benliegenden segment such that the joint (28) in section transverse to the extension of the joint comprises egg NEN U-shaped course.
DE1999162454 1999-12-22 1999-12-22 Rotor blade for wind turbines Withdrawn DE19962454A1 (en)

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Application Number Priority Date Filing Date Title
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DE1999162454 DE19962454A1 (en) 1999-12-22 1999-12-22 Rotor blade for wind turbines
PCT/DE2000/004518 WO2001046582A3 (en) 1999-12-22 2000-12-19 Rotor blade for wind power installations

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DE10235496A1 (en) * 2002-08-02 2004-02-12 Ge Wind Energy Gmbh Method for making wind turbine blade comprises fitting connectors over joint between two sections of blade, gap between inner surfaces of connector and blade sections then being filled with resin
FR2863319A1 (en) * 2003-12-09 2005-06-10 Ocea Sa Wind generator`s blade for producing electricity, has ribs coupled to mast using sticking lip, and layer coupled to ribs by sticking lip, where sticking lip is constituted of bi-component polyurethane adhesive
WO2009109619A2 (en) * 2008-03-05 2009-09-11 Vestas Wind Systems A/S An assembly tool and a method of manufacturing a blade
WO2010013025A2 (en) 2008-08-01 2010-02-04 Vestas Wind Systems A/S Segmented rotor blade extension portion
WO2010013024A2 (en) 2008-08-01 2010-02-04 Vestas Wind Systems A/S Rotor blade extension portion having a skin located over a framework
DE102005059298B4 (en) 2004-12-17 2010-07-29 General Electric Co. System and method for passive load reduction for a wind turbine
DE102009002637A1 (en) * 2009-04-24 2010-10-28 Wobben, Aloys Rotor blade for wind turbine, has support structure with belt, where belt has certain thickness and width, and width of belt is adapted at constant thickness along length of belt at load distribution
US20110100533A1 (en) * 2008-06-27 2011-05-05 Repower Systems Ag Method and production of a rotor blade for wind energy plant
DE102013200287A1 (en) * 2013-01-11 2014-07-17 Bayerische Motoren Werke Aktiengesellschaft A process for the production of a structural component of a vehicle
CN105927465A (en) * 2016-05-31 2016-09-07 上海理工大学 Magnetic deformation blade of vertical axis wind turbine

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DE102006022279B4 (en) 2006-05-11 2016-05-12 Aloys Wobben Rotor blade for a wind turbine
EP2153058A2 (en) * 2006-11-02 2010-02-17 Lignum Vitae Limited Wind rotor blade and wind turbine comprising such blade
CN101646865B (en) 2006-12-15 2013-01-09 布拉德纳公司 Reinforced aerodynamic profile
ES2496167T3 (en) 2007-01-16 2014-09-18 Bladena Aps Enhanced wind turbine blade
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WO2008092451A3 (en) * 2007-01-29 2008-12-11 Univ Danmarks Tekniske Wind turbine blade
ES2342638B1 (en) 2007-02-28 2011-05-13 GAMESA INNOVATION & TECHNOLOGY, S.L. A wind turbine blade multi-panel.
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